I nominate the Cactus Forest Loop Drive at Saguaro National Park East, in Tucson, Arizona as the best ride on planet Earth. For me, it is a time capsule, almost unchanged from the early '70s.

Of course, there are a lot of rides I haven't done, and I admit to bias. But seriously, if you're cycling in Tucson, this is a must.

This video is more watchable than most, and the music ain't bad, either.